Double Clicking an application for Editing & Deleting

Hi! Guys, I have been working with Aptana and Adobe Air and i managed to come up with a good application which shows our company's Contact List. I want to get it to be able to be double clicked so that one can edit it and delete it. Also the drop downs dont work, how can i get the to work? Can someone out thr have a look at my code and tell me where i am going wrong?